Tonga earthquakes

M4.4 earthquake 155 km NW of Pangai, Tonga

A magnitude 4.4 earthquake struck 155 km NW of Pangai, Tonga on Tue, Feb 13, 2018, 4:45 PM GMT+13 (03:45 UTC), 193 km (120 mi) below the surface.

A larger quake followed: M4.7 148 km WNW of Pangai, Tonga. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2018-02-13 03:45:36 UTC
Depth
193.3 km (120.1 mi), intermediate-depth
Epicenter
18.908° S, 175.487° W
Region
Tonga
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 14.9 km horizontally, 9.9 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
87°
Stations used
25

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 3 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000d6xh. Read Thu, Oct 1, 2026, 4:56 PM UTC.